.page-about {
  --about-pad: clamp(1.15rem, 4vw, 2.5rem);
  --about-hair: 1px solid rgba(139, 154, 163, 0.45);
  --about-hair-light: 1px solid rgba(201, 162, 75, 0.28);

  background: var(--parchment);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-about p {
  margin: 0 0 1rem;
}

.page-about a {
  color: var(--gold-deep);
}

/* ---------- 通用带区 ---------- */
.page-about .about-band {
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--about-pad);
}

.page-about .about-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.page-about .about-kicker {
  margin: 0 0 0.85rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--gold-deep);
}

.page-about .about-kicker--light {
  color: var(--gold-bright);
}

.page-about .about-head {
  max-width: 760px;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-about .about-head h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.65rem, 3.6vw, 2.7rem);
  line-height: 1.26;
}

.page-about .about-head-note {
  margin: 0;
  font-size: 1rem;
  line-height: 1.9;
  color: rgba(20, 27, 36, 0.75);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 2.5rem) var(--about-pad) clamp(2.5rem, 6vw, 4rem);
  color: var(--parchment);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(201, 162, 75, 0.24), transparent 62%),
    linear-gradient(155deg, var(--wine) 0%, var(--wine-deep) 54%, var(--wine-darker) 100%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.6;
}

.page-about .about-hero-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.page-about .about-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 clamp(1.25rem, 3vw, 2rem);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: rgba(247, 241, 229, 0.6);
}

.page-about .about-crumb a {
  color: rgba(247, 241, 229, 0.72);
  text-decoration: none;
}

.page-about .about-crumb a:hover,
.page-about .about-crumb a:focus-visible {
  color: var(--gold-bright);
}

.page-about .about-crumb [aria-current="page"] {
  color: var(--gold-bright);
}

.page-about .about-hero-grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
}

.page-about .about-eyebrow {
  color: var(--gold-bright);
}

.page-about .about-hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.3rem, 6vw, 4.4rem);
  line-height: 1.08;
  color: var(--parchment);
}

.page-about .about-lede {
  max-width: 46ch;
  margin: 0 0 1.1rem;
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.95;
  color: rgba(247, 241, 229, 0.84);
}

.page-about .about-hero-meta {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: rgba(247, 241, 229, 0.6);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-about .about-hero-actions .btn--ghost {
  color: var(--gold-bright);
  border: 1px solid rgba(201, 162, 75, 0.55);
  background: transparent;
}

.page-about .about-hero-media {
  margin: 0;
}

.page-about .about-hero-media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border: 1px solid rgba(201, 162, 75, 0.5);
}

.page-about .about-hero-media figcaption {
  padding-top: 0.7rem;
  font-size: 0.78rem;
  line-height: 1.75;
  color: rgba(247, 241, 229, 0.6);
}

/* ---------- 品牌母题 ---------- */
.page-about .about-origin-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-about .about-origin-copy {
  max-width: 720px;
}

.page-about .about-origin-copy h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.65rem, 3.4vw, 2.6rem);
  line-height: 1.28;
}

.page-about .about-origin-copy p {
  color: rgba(20, 27, 36, 0.82);
}

.page-about .about-aside-card {
  display: grid;
  gap: 1rem;
  align-content: start;
  padding: 1.15rem;
  background: rgba(220, 237, 234, 0.45);
  border: var(--about-hair-light);
  border-top: 2px solid var(--gold);
}

.page-about .about-roter {
  margin: 0;
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.page-about .about-aside-text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(20, 27, 36, 0.78);
}

/* ---------- 时间线 ---------- */
.page-about .about-band--ink {
  background: linear-gradient(180deg, var(--ink), #0d131a);
  color: var(--parchment);
}

.page-about .about-band--ink h2 {
  color: var(--parchment);
}

.page-about .about-band--ink .about-kicker {
  color: var(--gold-bright);
}

.page-about .about-band--ink .about-head-note {
  color: rgba(247, 241, 229, 0.72);
}

.page-about .about-years {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-year {
  position: relative;
  padding: 0 0 clamp(1.75rem, 3vw, 2.5rem) 1.4rem;
  border-left: 1px solid rgba(201, 162, 75, 0.35);
}

.page-about .about-year:last-child {
  padding-bottom: 0;
}

.page-about .about-year::before {
  content: "";
  position: absolute;
  top: 0.7rem;
  left: -4.5px;
  width: 8px;
  height: 8px;
  background: var(--gold);
}

.page-about .about-year-num {
  display: block;
  margin-bottom: 0.4rem;
  font-family: var(--font-num);
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1;
  color: var(--gold-bright);
}

.page-about .about-year-tag {
  margin: 0 0 0.4rem;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: rgba(232, 199, 122, 0.85);
}

.page-about .about-year-body h3 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
  color: var(--parchment);
}

.page-about .about-year-body p:last-child {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.9;
  color: rgba(247, 241, 229, 0.76);
}

/* ---------- 校对流程 ---------- */
.page-about .about-split {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-about .about-process-copy h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.65rem, 3.4vw, 2.6rem);
  line-height: 1.28;
}

.page-about .about-steps {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.1rem;
}

.page-about .about-steps li {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.9rem;
  padding-bottom: 1.1rem;
  border-bottom: var(--about-hair);
}

.page-about .about-steps li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .about-step-num {
  font-family: var(--font-num);
  font-size: 1.35rem;
  line-height: 1.25;
  color: var(--gold-deep);
}

.page-about .about-steps h3 {
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
}

.page-about .about-steps p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(20, 27, 36, 0.78);
}

.page-about .about-process-media {
  margin: 0;
  padding: 0.6rem;
  background: #fffdf6;
  border: 1px solid rgba(201, 162, 75, 0.4);
}

.page-about .about-process-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-about .about-process-media figcaption {
  padding-top: 0.6rem;
  font-size: 0.78rem;
  line-height: 1.75;
  color: rgba(20, 27, 36, 0.65);
}

.page-about .about-marks {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding: clamp(1.1rem, 3vw, 1.75rem);
  border-left: 3px solid var(--teal);
}

.page-about .about-marks-title {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.page-about .about-marks ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.page-about .about-marks li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  font-size: 0.93rem;
  line-height: 1.8;
  color: rgba(20, 27, 36, 0.82);
}

/* ---------- 岗位 ---------- */
.page-about .about-roles {
  display: grid;
  gap: 1rem;
}

.page-about .about-role {
  display: flex;
  flex-direction: column;
  padding: 1.15rem 1.15rem 1rem;
  background: #fffdf7;
  border: 1px solid rgba(20, 27, 36, 0.12);
  border-top: 2px solid var(--wine);
}

.page-about .about-role:nth-child(3n + 2) {
  border-top-color: var(--teal);
}

.page-about .about-role:nth-child(3n) {
  border-top-color: var(--gold);
}

.page-about .about-role-index {
  margin: 0 0 0.35rem;
  font-family: var(--font-num);
  font-size: 0.9rem;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
}

.page-about .about-role h3 {
  margin: 0 0 0.45rem;
  font-size: 1.3rem;
}

.page-about .about-role-line {
  flex: 1 1 auto;
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: rgba(20, 27, 36, 0.76);
}

.page-about .about-role .disclosure-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  margin-top: 0.9rem;
  padding: 0.7rem 0 0;
  font: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--gold-deep);
  text-align: left;
  background: none;
  border: 0;
  border-top: 1px solid rgba(20, 27, 36, 0.16);
  cursor: pointer;
}

.page-about .about-role .disclosure-trigger:hover {
  color: var(--wine);
}

.page-about .about-role .disclosure-trigger:focus-visible {
  outline: 2px solid var(--gold-deep);
  outline-offset: 3px;
}

.page-about .about-role .disclosure-panel {
  padding-top: 0.7rem;
  font-size: 0.92rem;
  line-height: 1.85;
  color: rgba(20, 27, 36, 0.78);
}

.page-about .about-role .disclosure-panel p {
  margin: 0;
}

.page-about .about-team-more {
  margin: 1.75rem 0 0;
  font-size: 0.95rem;
  color: rgba(20, 27, 36, 0.72);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  color: var(--parchment);
  background: linear-gradient(150deg, var(--teal) 0%, #0a4a4c 58%, #07383a 100%);
}

.page-about .about-partners h2 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.65rem, 3.4vw, 2.6rem);
  line-height: 1.3;
  color: var(--parchment);
}

.page-about .about-partners-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-about .about-partners-copy > p {
  max-width: 58ch;
  color: rgba(247, 241, 229, 0.82);
}

.page-about .about-partner-groups {
  display: grid;
  gap: 1.15rem;
  margin-top: 1.5rem;
}

.page-about .about-partner-title {
  margin: 0 0 0.6rem;
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  color: var(--gold-bright);
}

.page-about .about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-tags .tag {
  color: rgba(247, 241, 229, 0.9);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(232, 199, 122, 0.4);
}

.page-about .about-partner-media {
  margin: 0;
}

.page-about .about-partner-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid rgba(201, 162, 75, 0.45);
}

.page-about .about-partner-media figcaption {
  padding-top: 0.65rem;
  font-size: 0.78rem;
  line-height: 1.75;
  color: rgba(247, 241, 229, 0.62);
}

/* ---------- 数字 ---------- */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(139, 154, 163, 0.45);
  border: 1px solid rgba(139, 154, 163, 0.45);
}

.page-about .about-stat {
  padding: clamp(1.1rem, 2.5vw, 1.6rem);
  background: var(--parchment);
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  line-height: 1;
  color: var(--wine);
}

.page-about .about-stat-num em {
  font-style: normal;
  font-size: 0.55em;
  vertical-align: super;
}

.page-about .about-stat-label {
  margin: 0.55rem 0 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: rgba(20, 27, 36, 0.74);
}

.page-about .about-reach-note {
  max-width: 760px;
  margin: 1.5rem 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(20, 27, 36, 0.72);
}

/* ---------- 长期价值 ---------- */
.page-about .about-lasting {
  background: linear-gradient(180deg, var(--parchment), #efe6d5);
}

.page-about .about-lasting-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-about .about-lasting-grid h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.65rem, 3.4vw, 2.6rem);
  line-height: 1.28;
}

.page-about .about-lasting-grid > div > p:last-child {
  color: rgba(20, 27, 36, 0.78);
}

.page-about .about-lasting-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-lasting-list li {
  padding: 1.1rem 0;
  border-top: var(--about-hair);
}

.page-about .about-lasting-list li:first-child {
  border-top: 2px solid var(--wine);
}

.page-about .about-lasting-num {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  color: var(--gold-deep);
}

.page-about .about-lasting-list h3 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
}

.page-about .about-lasting-list p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(20, 27, 36, 0.76);
}

/* ---------- 收束 ---------- */
.page-about .about-cta {
  color: var(--parchment);
  background:
    radial-gradient(110% 80% at 10% 0%, rgba(201, 162, 75, 0.2), transparent 60%),
    linear-gradient(140deg, var(--wine) 0%, var(--wine-deep) 56%, var(--wine-darker) 100%);
}

.page-about .about-cta h2 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
  line-height: 1.25;
  color: var(--parchment);
}

.page-about .about-cta p {
  max-width: 56ch;
  color: rgba(247, 241, 229, 0.82);
}

.page-about .about-cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-about .about-cta .btn--ghost {
  color: var(--gold-bright);
  border: 1px solid rgba(201, 162, 75, 0.55);
  background: transparent;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-partner-groups {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 700px) {
  .page-about .about-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.15rem;
  }
}

@media (min-width: 760px) {
  .page-about .about-year {
    display: grid;
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 1.5rem;
    padding-left: 1.75rem;
  }

  .page-about .about-year-num {
    margin-bottom: 0;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.78fr);
    align-items: end;
  }

  .page-about .about-hero-media img {
    aspect-ratio: 3 / 4;
  }

  .page-about .about-origin-grid {
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: start;
  }

  .page-about .about-aside-card {
    position: sticky;
    top: calc(var(--bar-h) + 1.5rem);
  }

  .page-about .about-roter {
    writing-mode: vertical-rl;
    height: 9rem;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
    align-items: start;
  }

  .page-about .about-partners-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
    align-items: center;
  }

  .page-about .about-lasting-grid {
    grid-template-columns: minmax(0, 0.66fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 820px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1060px) {
  .page-about .about-roles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-about .about-role:nth-child(3n + 2) {
    transform: translateY(1.35rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-role:nth-child(3n + 2) {
    transform: none;
  }
}